Effects of combustion heating vitiated air on kerosene-fueled scramjet performance

CHEN Liang; SONG Wen-yan; LUO Fei-teng; LIU Hao; LI Jian-ping

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Effects of combustion heating vitiated air on kerosene-fueled scramjet performance

更新时间：2026-07-07

- Effects of combustion heating vitiated air on kerosene-fueled scramjet performance
- Vol. 28, Issue 11, (2013)
- 作者机构：
  
  西北工业大学动力与能源学院,西安,710072
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
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CHEN Liang, SONG Wen-yan, LUO Fei-teng, et al. Effects of combustion heating vitiated air on kerosene-fueled scramjet performance[J]. 2013, 28(11).
DOI：

CHEN Liang, SONG Wen-yan, LUO Fei-teng, et al. Effects of combustion heating vitiated air on kerosene-fueled scramjet performance[J]. 2013, 28(11). DOI：

摘要

针对目前超燃冲压发动机地面试验设备普遍存在的工质污染问题

采用经过验证的数值计算方法开展了燃烧加热污染空气对煤油超燃冲压发动机性能的影响研究.以飞行马赫数为6.0作为基准状态

分别对纯净空气来流和不同参数匹配方案的污染空气来流下发动机整机流场和性能进行了数值模拟.计算结果表明:在压力参数中选择匹配静压时最接近于纯净空气来流的结果

选择匹配总压时差别最大;在温度参数中选择匹配静温时最接近于纯净空气来流的结果

选择匹配总温时差别最大;压力参数匹配选择的影响更具有决定性作用

需要优先考虑.研究结果可为认识整机污染效应影响

确定污染空气来流下地面试验模拟准则提供理论依据.

Abstract

For the problem of test media vitiation associated with scramjet ground test facility

the effects of combustion heating vitiated air on kerosene-fueled scramjet performance were investigated with validated numerical approach. Under the simulating condition of flight Mach 6.0

the flow-field and performance of the scramjet were numerically calculated with clean free airstream and vitiated free airstream

respectively. Several matched parameter schemes for vitiated free airstream relative to clean air were considered. It indicates that among the pressure-interrelated parameters

the least discrepancy resulting from vitiation effects is found when the static pressure is matched

while the most discrepancy is found when the total pressure is matched; among the temperature-interrelated parameters

the least discrepancy resulting from vitiation effects is found when the static temperature is matched

while the most discrepancy is found when the total temperature is matched. As for the vitiation effects of combustion heating vitiated air

selection of pressure-interrelated parameters to be matched is more significant than selection of temperature-interrelated parameters. The present efforts can provide theoretical basis for understanding the vitiation effects on the scramjet and determining the simulation rules of ground test with vitiated free airstream.

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Related Author

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Daohuang LIU

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Jiaying HU

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Related Institution

College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics

Science and Technology on Scramjet Laboratory, Hypervelocity Aerodynamics Institute of China Aerodynamics Research and Development Center

School of Aeronautical Manufacturing Engineering， Nanchang Hangkong University

Faculty of Rocket and Space Technology， National Aerospace University “KhAI”

College of Aerospace Science and Engineering，National University of Defense Technology

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